问Android按住按钮冻结我的用户界面

EN

// This is what is called when I click my "scan" button.
public void menuScanMember(View view) {
    try {
        Intent intent = new Intent("com.google.zxing.client.android.SCAN");
        intent.putExtra("SCAN_MODE", "QR_CODE_MODE,PRODUCT_MODE");
        startActivityForResult(intent, 0);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

//In the same activity you'll need the following to retrieve the results:
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
    if (requestCode == 0) {
        if (resultCode == RESULT_OK) {
            p_strScanMemId = intent.getStringExtra("SCAN_RESULT");
            String strId = getMemberByMemberId(db, p_strScanMemId);

            if (strId != null && !("".equalsIgnoreCase(strId))) {
                // If found, send to member info landing page
                Intent detailIntent = new Intent(this, MemberDetail.class);
                detailIntent.putExtra(EXTRA_MESSAGE, p_strScanMemId);
                startActivity(detailIntent);
            } else {
                // If not found, ask user if they want to create the member account now.
                createYesNoDialog("Member Not Found.  Register Now?");
            }

        } else if (resultCode == RESULT_CANCELED) {
            Log.v("CANCELLED CANCELLELD", "RESULT CANCELLED");
            // Nothing to do here - we'll just exit the activity
        }
    }
}